Compare 21/54 and 15/75
21/54 is greater than 15/75
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 75 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 54 × 25 = 1350,
21/54 = 21 × 25/54 × 25 = 525/1350 - Likewise, for the 2nd fraction, since 75 × 18 = 1350,
15/75 = 15 × 18/75 × 18 = 270/1350 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 525/1350 > 270/1350 or 21/54 > 15/75
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